Metallic packing.



P. H. BATTEN.

METALLIC PACKING.

APPLICATION FILED NOV.22, m3.

Mill

pnrrnn snares rarnnr orrron A PERCY H. BATTEN,

OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE HEWITTCOMPANY, OF CHICAGO,

ILLINOIS, A CORPORATION.

METALLIC rncxrnc.

To all whom it may concern:

Be it known that I, PERCY H. BATTEN, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Metallic Packing, ofwhich I do declare the followingto be a full, clear, and exactdescription, reference being had to the accompanying drawing, formingpart of this specification.

y present invention has for its object to provide a simple and effectiveconstruction of metallic packing for the rods of steam engines and othermachines, and the invention consists in the novel features ofconstruction hereinafter described, illustrated in the accompanyingdrawing and particularly pointed out in the claim at the end of thisspecification.

Figure. l is a view in longitudinal section showing my invention appliedto the piston rod of an engine. Fig. 2 is an enlarged detail view of myimproved metallic packing ring inclosed within an annular retainer. Fig.3 is a View in cross section on line 33 of Fig. 2. Fig. 4 is a view incross section on line H of Fig. 2.

Referring to the accompanying drawing, A designates the piston rod to bepacked and B denotes the head of the cylinder through which the pistonrod passes. Secured to the outer end of the cylinder head B at a pointopposite the chamber B thereof is the usual gland D that is bolted tothe cylinder head in any convenient manner. Within the chamber B of thecylinder head is placed the coiled spring E, the inner end of whichbears against a cup-shaped ring B and the outer end of which encirclesthe tubular stem 7 of the annular chamber follower F that fits over thepiston rod A. Preferably, a ring G is interposed between the spring Eand the expanded portion of the follower F. As shown, a sectional ringor bushing H oncircles the piston rod where it passes through the glandD, the parts of this bushing being held together by a spring 71..Between the follower F and the ring or bushing H is placed one or moreof my improved metallic packing rings. In the drawing, two of theserings are shown inclosed within an annular retainer K.

My improved packing ring comprises a male section M and a female sectionN. The female section N has each of its ends formed Specification ofLetters Patent.

. tice this is I Patented May a, 1915.. Serial No. 802,536.

with an inclined face extending from the periphery of the sectioninwardly toward the center of the section. The male member M of the ringhas each of its ends formed with an inclined face extending from theinner surface of the section toward the central part of the periphery ofthe section; and the end faces of the male and female sections areshaped to snugly fit together when the sections are in position for use.Preferably, the inclined ends of the male and female sections arecurved, as in pracbelieved to give the best results. The peripheries ofthe male and female sections M and N are formed with the long cut-awayspaces m and n to receive the plate springs P which, by bearing upon thering sections and upon the inner face of the retainer K, serve toconstantly force the sections against each other and insure their snugbearing against the surface of the rod A, these spaces allowing also forthe pressure of steam upon the peripheries of the ring sections to aidin holding them against the rod. As shown, the inner bearing portion ofeach of the ring sections M and N is of semicylindrioal shape, and theinner meeting points of the sections are at diametrically oppositepoints of the rod A, as this arrangement insures a more uniform bearingof the sections upon the rod as they become reduced by wear. It will benoticed, also, that the peripheral parts of the male section M of myimproved packing ring is formed with the bearing portions adjacent theends, these bearing portions engaging the retainer K and wedging beneaththe inclined ends of the female section as the rings are forced togetherby the springs and by the pressure upon their peripheries.

My improved packing ring is extremely simple and effective inconstruction and the parts can be readily placed in position for use.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is

A metallic packing comprising a ring formed of male and female sections,the female section having its peripheral portion extending through anarc of greater angle than its inner bearing portion, and the malesection having its peripheral portion extending through an the femalesectiqn being recessed froi ny slde to side between 1ts ends to receivea spring and the end portions of the fernaie seetion having curvedperipheral surfaces f the l d am t io eth ring, -t mal section beingrecessedfrom side to side between its ends to receive a spring andhaving ad- 10 jacent its inclined ends reduced peripheral p i .c i tespe,12; t9 t e un edu PERCY H. BATTEN.

Witnesses:

WALTER C; VVINKAL, JOSEPH S. KELLY.

Copies of this patent may be ob teined for five cents each, byaddressing the commissioner of Patents, 7 iwashington, D. G3 7 V,

